Re: video: au1100fb: Move a variable assignment behind a null pointer check in au1100fb_setmode()

[Helge Deller]

On 3/5/25 13:14, Markus Elfring wrote:
> > Anyway, none of that applies here, because this is just pointer math.
> Which data processing do you expect to be generally supported at the discussed
> source code place (according to the rules of the programming language “C”)?
> https://en.cppreference.com/w/c/language/behavior

There is nothing to discuss.
Dan is correct.

We have:
struct au1100fb_device {
        struct fb_info info;
...

so:

struct fb_info *info = &fbdev->info;
gets translated by the compiler to a trivial pointer math:
info = <value of fbdev> + 0     # 0 is there offset of "info" in the struct.

No crash or anything can or will happen here.

Markus, maybe you missed the "&" in front of "&fbdev->info" ?

Helge